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2232223 = 7318889
BaseRepresentation
bin1000100000111110011111
311012102000221
420200332133
51032412343
6115502211
724654640
oct10407637
94172027
102232223
111295114
128b7967
13602056
144216c7
152e15ed
hex220f9f

2232223 has 4 divisors (see below), whose sum is σ = 2551120. Its totient is φ = 1913328.

The previous prime is 2232221. The next prime is 2232229. The reversal of 2232223 is 3222322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222322 = 21611161.

It is a cyclic number.

It is not a de Polignac number, because 2232223 - 21 = 2232221 is a prime.

It is a super-3 number, since 3×22322233 = 33368293023757420701, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2232197 and 2232206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159438 + ... + 159451.

It is an arithmetic number, because the mean of its divisors is an integer number (637780).

22232223 is an apocalyptic number.

2232223 is a deficient number, since it is larger than the sum of its proper divisors (318897).

2232223 is an equidigital number, since it uses as much as digits as its factorization.

2232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318896.

The product of its digits is 288, while the sum is 16.

The square root of 2232223 is about 1494.0625823572. The cubic root of 2232223 is about 130.6910537168.

Adding to 2232223 its reverse (3222322), we get a palindrome (5454545).

Subtracting 2232223 from its reverse (3222322), we obtain a palindrome (990099).

The spelling of 2232223 in words is "two million, two hundred thirty-two thousand, two hundred twenty-three".

Divisors: 1 7 318889 2232223